Mg ion-catalyzed polymerization of 1,3-dioxolane in battery electrolytes

Electrolyte salts with Mg 2+ and Al 3+ Lewis acidic cations demonstrate polymerization of 1,3-dioxolane. The speed and extent of the reaction depends on coordination of the anion with the Mg 2+ cation catalyst. Weakly coordinating anions such as TFSI − aid faster polymerization while strongly coordi...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-04, Vol.56 (33), p.4583-4586
Main Authors: Sahadeo, Emily, Wang, Yang, Lin, Chuan-Fu, Li, Yue, Rubloff, Gary, Lee, Sang Bok
Format: Article
Language:English
Online Access:Get full text
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Summary:Electrolyte salts with Mg 2+ and Al 3+ Lewis acidic cations demonstrate polymerization of 1,3-dioxolane. The speed and extent of the reaction depends on coordination of the anion with the Mg 2+ cation catalyst. Weakly coordinating anions such as TFSI − aid faster polymerization while strongly coordinating anions such as ClO 4 − hinder the polymerization. Mg 2+ ions in electrolytes can catalyze the polymerization of 1,3-dioxolane to form poly-DOL while anion pairs affect their capability.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc01769h